Abstract
A 75-year-old male visited us after experiencing sudden lower abdominal pain and darkred blood discharge 5 days after colonoscopy. Emergency surgery was performed after a deep ulcer on the mesenterium side of the sigmoid colon and necrosis of the colon wall had been revealed by endoscopy. Rupture of the digestive tract is a known complication of colonoscopy . Although he had stopped taking an anticoagulant for one week, his melena seemed to be caused by the resumption of medication after colonoscopy. We wish to report this case of delayed rupture of the sigmoid colon after colonoscopy with a review of the literature.
